Yes McDonald’s Accepts Competitor’s Coupons! Of course this is up to the manager at each location but so far every McDonald’s I have visited has taken them with no problems. It is rare to see coupons for McDonald’s but I regularly see coupons for Arby’s, Burger King, Steak N’ Shake, Sonic and Wendy’s. The coupon is for a comparable item at McDonald’s. So for example if you have a $1.00 of shake at Arby’s you can use that for $1.00 off a shake at McDonald’s! I have noticed too that the McDonald’s locations don’t always advertise they take competitor coupons, so don’t be afraid to ask!